GeForce GTX 580 vs GeForce GTX 960M

Intro

Compare those specifications to the GeForce GTX 960M, which comes with core speeds of 1096 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 580		4956 points
GeForce GTX 960M		4350 points
	Difference: 606 (14%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
GeForce GTX 580		244 Watts
	Difference: 179 Watts (275%)

Memory Bandwidth

In theory, the GeForce GTX 580 is 201% faster than the GeForce GTX 960M overall, due to its higher bandwidth. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 128384 (201%)

Texel Rate

The GeForce GTX 580 will be a little bit (about 13%) faster with regards to AF than the GeForce GTX 960M. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce GTX 960M		43840 Mtexels/sec
	Difference: 5568 (13%)

Pixel Rate

The GeForce GTX 580 is a lot (approximately 111%) faster with regards to FSAA than the GeForce GTX 960M, and should be able to handle higher resolutions better. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 960M		17536 Mpixels/sec
	Difference: 19520 (111%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.